Electric-lamp regulator.



E. JOHNSON. ELECTRIC LAMP REGULATOR. APPLIGATXON TILED ANMB, 1909. RENEWBNOV. 16, 1910.

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Attn-enceintes'sont 2s,.;1ece, serial no. esseci. 1 Renewed November is; isle. sei-nino; semis.

To @ZZ whom it may concern:

Beit known tlizitt'l, Enjnnij JOHNSON, e citizen ot' the United States', residing et Newbergin the conntyo `Yamhill and. State of @regeln have invented a certain new and useful ElectriLai/np leguletor, of which the following is e specification, reference being had therein to the accompanying drew ing. I

This invention relatie to electric ylamp regulators, end is in the nature of en iin4 provenient upon and simplification. of the construction set forth in Potent No. SWAN, dated dune i8, i90?.

The object of the present invention is to psovide e regulator adopted to be interposed in any eiectricel circuit end particularly be. tween en ordinary incandescent light bulb end. the socket which ordinarily receives the bulb, .seid regulator embodying a series of exposed coils and e shitteble brush adopted to be moved. across the coils and to establish electricel contect therewith, whereby any desired number of seid coils :may be turned into ont ot the circuit for the purpose ot trie resistance the current passing to the iloinent of t Le bulb.

1With the above and other objects in view, the invention consists in the novel construction, combination and arrangement oi ports es herein telly claimed. l

ln the accompanying drawingsz-#Figure l is e side elevation of an electric lamp regulator embodying .the present invention. 2 is e similar View thereof With the outer casing removed. Fig. 3 is a diametri- Fig.' t is a cross section teken about centrally of Fig. 3.

The regulator contemplated in this inven tion comprises e mein bodyl of porcelain cr other insulating materiel which is essen-- ieliy provided with one Het side E2 While the remainder ot the body nie-y be ont away et veiions intervals es shown et 3 in Fig. fr to lighten the construction and provide it series oit redielly disposed arms e around which the resistance Wire 5 is adapted to be Wound.. llilhe vvire 5 'which is of higl'i electrical tesistence is Wound eionnd the body 1 es bestshovvn in Figs et, the coils or windings -ot the Wire lying side-by-side es indicated Figs. 2 end 3, end in so Winding the evite portions uJhereot ienne-netonnet neofiti-innen.

described, illustrated and 2 end 3, also Fig.'

V' onjnnvvnnne, onneon, `essi;enten; etichette:'feesttent/rends,-'ro:l incen'nnscnne Lei/.te nesonemonicoi, c

n' conroitnioiv on wes other across the fist' fece 2 of the body'l,` the purpose of which will hereinafter op peer.

Extending from the upper side of the mein body It is e hub-like body 6 formed of porcelain or similar non-conducting meteria1,the same being connectedto the body lby e metal bolt or scf-elw through which the current passes es will herein-citer appesi. Sun rounding the body 6 is e screvv cap 8 adapted to scren7 into' the ordinary incendescent lomp ysoclret non' in common use.

?rojecting from the lower side, o the body l is scr-enT bese 91 adopted tcfeeceive the ordinary incandescent Velectric bulb or lomp, The screw bese 9 is preferably surrounded by en'ornenientei lcasing sleeve i0 While the body l is also surrounded by on outer inclosing casing ll which conceals the coils 5 ond also the brush hereinafter referred to. AThe scnevv bose is secured to the body 'l by nieens ofthe screws l2 end 13.

le designates e, brush composed ot' e?. spring; mete-l strip the free end of Which rests against ond is shiiftfible in an arcuate path across and in Contact with the enposed coils 5 es indicated in 2 and 3. The outer end ci: this brush is fastened to the stein l5 of en operating knob 16 which passes throughy the outer casing il as shown in Figs. 3, and e sind is in electrical Contact With the metal strip 17 which is embedded in the body l and which connect-s with the metal screw 12.-

The current is received in the screw cap 8 to the knob stein l5 and from thence through the strip 17 to the screw 12. The current .then passes through `the incandescent lamp r.nd returns through the center bolt or screw 'Z to the center point of contactant the ordinary socket. By Ineens ofthe knob 1G, the

thereby carrying the contacting extremity of seid brush across the coils 5 'which are bare so that in this wey any number ot seid coils may be included in the circuit end the deagree of incendescence of the'lement .f'eried. in accordance With they resistance eorded by the number of coils Thus, the light tney be turned up or down in o inonnei' similer to the gas in en ordinary ges jet.. 'The device may also be menniectnred very eco- `are brought into parallel. relation to each brush le may turned or partially revolved,

and passes through the Wire 5 to brush 14,

An electric lamp regulator adapted to be interposed betwen a lamp socket and a. light bulb and'comprising a reel shaped body of non-conducting material having a series of radial arms, an exposed series of'connected colls of highelectrical resist-ance disposed in lthe lamp circuit and strung around said arms, and a pivoted spring brush included in said circuit and-adapted to have its free end shifted by a turning movement across said coils.

In testimony whereof I aix my signature in presence of two Witnesses.

EMERY JOHNSON.

Vitnesses:

A. C. STANBROUGH, L. F. HALL. 

